不锈钢超精抛光蜡的研制  

Preparation of Superfine Polishing Wax for Stainless Steel

作　　者：朱永华[1,2] 潘国顺[1,2] 刘岩[2] 

机构地区：[1]清华大学摩擦学国家重点实验室,北京100084 [2]深圳清华大学研究院,广东深圳518057

出　　处：《材料保护》2011年第7期47-49,8,共3页Materials Protection

基　　金：国家自然科学基金项目(50775122);广东省自然科学基金资助项目(8251805701000001);国家863计划项目(2009AA043101);国家自然科学基金委员会与广东省政府自然科学联合基金重点项目(U0635002)资助

摘　　要：目前,国产不锈钢超精抛光蜡不能满足市场需求,对其配方研制报道较少。为此,对不锈钢粗抛光后,采用超精抛光蜡进行精抛光,对其组分进行了筛选:以α型氧化铝粉为抛光磨料;以混合硬脂酸作抛光内脂;利用油酸的润滑作用降低不锈钢表面的抛光温度,利用三乙醇胺与有机酸的皂化反应生成物润滑和清洁不锈钢表面;利用松香和石油磺酸钡提高不锈钢表面的光泽度。获得的抛光蜡最佳组成:22.5 g硬脂酸4,.5 g油酸0,.5 g三乙醇胺0,.5 g石油磺酸钡,2.5 g水白氢化松香,69.5 g氧化铝粉。经该超精抛光蜡抛光后不锈钢表面光泽度可达690.6。不锈钢超精抛光蜡的抛光机理:硬脂酸在铁表面产生化学吸附形成单分子层硬脂酸铁皂膜,该润滑膜在金属表面附着力大,使边界润滑能力大为提高,从而消除了氧化铝粉体磨削过程中可能带来的微细划痕。A superfine polishing wax for stainless steel was developed by screening components.As-prepared superfine polishing wax used α-Al2O3 powder as polishing paste,mixed steric acid as polishing grease,oleic acid and triethanolamine as lubricant,and barium petroleum sulfonate and hydrogenated rosin as glossiness additive.The superfine polishing wax with optimized composition was composed of 69.5g α-Al2O3,22.5g stefic acid,4.5 g oleic acid,0.5gtriethanolamine,0.5g barium petroleum sulfonate and 2.5g hydrogenated rosin.Resultant polished stainless steel surface had a glossiness of 690.6.In terms of the polishing mechanism,the steric acid was able to form saponified iron stearate monolayer on the steel surface via chemical adsorption.Resultant saponified iron stearate monolayer as a lubricating layer had good adhesion to steel substrate and possessed good boundary lubricating performance,making it feasible to eliminate fine scratches formed by abrasion of alumina particulates.

关 键 词：超精抛光蜡 不锈钢 光泽度 抛光机理 

分 类 号：TG580.692[金属学及工艺—金属切削加工及机床]